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Hamimes, S.* ; Arakawa, H. ; Stasiak, A.Z.* ; Kierek, A.M.* ; Hirano, S.* ; Yang, Y.-G.* ; Takata, M.* ; Buerstedde, J.-M. ; van Dyck, E.*

RDM1, a novel RNA-recognition MOTIF (RRM)-containing protein involved in the cell response to cisplatin in vertebrates.

J. Biol. Chem. 280, 9225-9235 (2005)
DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
A variety of cellular proteins has the ability to recognize DNA lesions induced by the anti-cancer drug cisplatin, with diverse consequences on their repair and on the therapeutic effectiveness of this drug. We report a novel gene involved in the cell response to cisplatin in vertebrates. The RDM1 gene (for RAD52 Motif 1) was identified while searching databases for sequences showing similarities to RAD52, a protein involved in homologous recombination and DNA double-strand break repair. Ablation of RDM1 in the chicken B cell line DT40 led to a more than 3-fold increase in sensitivity to cisplatin. However, RDM1-/- cells were not hypersensitive to DNA damages caused by ionizing radiation, UV irradiation, or the alkylating agent methylmethane sulfonate. The RDM1 protein displays a nucleic acid binding domain of the RNA recognition motif (RRM) type. By using gel-shift assays and electron microscopy, we show that purified, recombinant chicken RDM1 protein interacts with single-stranded DNA as well as double-stranded DNA, on which it assembles filament-like structures. Notably, RDM1 recognizes DNA distortions induced by cisplatin-DNA adducts in vitro. Finally, human RDM1 transcripts are abundant in the testis, suggesting a possible role during spermatogenesis.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
ISSN (print) / ISBN 0021-9258
e-ISSN 1083-351X
Zeitschrift Journal of Biological Chemistry, The
Quellenangaben Band: 280, Heft: 10, Seiten: 9225-9235 Artikelnummer: , Supplement: ,
Verlag American Society for Biochemistry and Molecular Biology
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Molecular Radiation Biology (IMS)